Absolutely unacceptable - sacking would make her a martyr of the right. If she were an employee of mine, I'd send her on a course about acceptable language use and then make her write a reflective piece to be published in MSM and socisl media explaining why what she said was unacceptable and put her on a final written warning.
Tory MP Anne-Marie Morris used the phrase "N . In the woodpile" when giving a speech in a meeting in the House of Commons. There are calls for her to be sacked. This is a phrase that even my parents wouldn't have used. I am surprised anyone under 60 knows it. Does she use this phrase at home? She should be severely reprimanded IMHO. Sacked if it happens again .